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Finding the Fourth Proportional to 553,697.10, 830,502.45 and 216,672.30

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Solution

The fourth proportional to 553,697.10, 830,502.45 and 216,672.30 is: 324,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,697.10 : 830,502.45 = 216,672.30 : x
  2. Step 2: Convert to fraction form
    553,697.10/830,502.45 = 216,672.30/x
  3. Step 3: Cross multiply
    553,697.10x = 830,502.45 × 216,672.30
  4. Step 4: Simplify right side
    553,697.10x = 179,946,875,997.14
  5. Step 5: Solve for x
    x = 179,946,875,997.14/553,697.10
  6. Step 6: Final answer
    x = 324,991.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.